Smithton – current water temperature and swimming conditions

Water Temperature in Smithton: Daily Trends, Historical Records, and Forecast

⚠️ This is cool water that may feel brisk on entry. Swimming is usually limited to short sessions, and prolonged stays can become uncomfortable without thermal protection. Many swimmers choose a wetsuit, especially for surfing or open-water swimming.

It’s important to note that these swimming tips and recommendations apply only in settled weather. When air temperatures drop below 20°C — and sometimes even below 25°C — swimming can feel uncomfortable, even when water temperatures are relatively high.

Water Temperature Over the Last 30 Days

Water temperatures in Smithton have been gradually cooling over the past month, with a further drop recorded during the last week.

According to our forecast, Sea water temperature in Smithton will be 18.6°C in the next 7 days. See the table below for daily data for the upcoming week.

Table of Daily Sea Temperature Data

Annual Water Temperature Overview by Month

Monthly Water Temp Ranges

30°C

25°C

20°C

15°C

10°c

5°C

0°C

Annual Water Temperature Trend

Smithton sits on Tasmania’s far north-west coast, where the waters of the Bass Strait shape a cooler, more changeable swimming environment than mainland Australia. Sea temperatures here are generally on the low side year-round. In summer, from December to February, the water usually reaches around 15–17 °C, which is refreshing rather than warm. Autumn sees temperatures easing back to about 13–15 °C, while winter brings the coldest conditions, commonly 11–12 °C. In spring, the sea slowly warms again, typically hovering between 12–14 °C as the days lengthen and weather patterns settle.